| Harstad to Idar-Oberstein | 1,355.15 mi (2,180.90 km) |
| Harstad to Idstein | 1,313.35 mi (2,113.63 km) |
| Harstad to Illertissen | 1,439.38 mi (2,316.45 km) |
| Harstad to Illingen | 1,379.97 mi (2,220.85 km) |
| Harstad to Ilmenau | 1,265.75 mi (2,037.02 km) |
| Harstad to Ilsede | 1,161.22 mi (1,868.80 km) |
| Harstad to Ilsenburg | 1,185.81 mi (1,908.38 km) |
| Harstad to Ilsfeld | 1,386.96 mi (2,232.10 km) |
| Harstad to Ilvesheim | 1,362.41 mi (2,192.58 km) |
| Harstad to Immenstadt im Allgau | 1,483.32 mi (2,387.17 km) |
| Harstad to Ingelheim | 1,331.67 mi (2,143.12 km) |
| Harstad to Ingolstadt | 1,395.43 mi (2,245.73 km) |
| Harstad to Iserlohn | 1,238.71 mi (1,993.51 km) |
| Harstad to Isernhagen-Sud | 1,151.73 mi (1,853.52 km) |
| Harstad to Ismaning | 1,431.34 mi (2,303.53 km) |
